Compensate for getter transform in isSubType test
Compensate for getter transform in isSubType test

Getters transform `T` to `=> T`. This means that `=> T <: T`
might need to be true after getters. Observed in the wild
tree checking t938.scala after getters.

lampepfl/dotty,dotty-staging/dotty,sjrd/dotty,dotty-staging/dotty,lampepfl/dotty,lampepfl/dotty,sjrd/dotty,lampepfl/dotty,som-snytt/dotty,dotty-staging/dotty,som-snytt/dotty,densh/dotty,sjrd/dotty,lampepfl/dotty,som-snytt/dotty,reactormonk/dotty,dotty-staging/dotty,som-snytt/dotty,densh/dotty,dotty-staging/dotty,sjrd/dotty,reactormonk/dotty,sjrd/dotty,som-snytt/dotty